Valve-spring compressor and lifter



June 3, 193.0. F. F. FOREMAN 1,750,980

VALVE SPRING COMPRESSOR AND LIFTER Filed Aug. 8, 1928 FQEQEQICK FOQEMAM'I/wento atroz eq Patented June 3, 1930 UNrrEn STATES PATENT OFFICE FREDERICK F. FOREMAN, or LANSING, IvIIorIIGAN, AssIGNoR oF ONE-HALF rro j PATRICK PLFAHEY, or HUBBAnnsToN, MIcIaIeAN 'f 'VALVE-SPRING COMPRESSOR AND i LIFTER Application inea August s, 192s. seriaiNq. 298,349.

This invention relates to valve spring co'mpressors and lifters, and belongs to that class ofvappliances designed and used for seizing and compressing a spring located in the valve mechanism or like situation', in order that the spring may be readily removed and reseated by the expenditure of a minimum of time and eort. j

The object of this invention is the produclo tion of a device of the type stated having parts of special construction and'arrangement, whereby it is believed a particularly strong and eifective tool for the purpose is made, the manufacture of this invention'being unusually easy and cheap especially in quantities. j y

This ,invention 'consists essentially of a pair of jaws movable parallel one with the' other, and operated by a reciprocating rody in the body of the invention, moved powerfully back and forth by means of a revoluble spirally grooved disk or member carriedby the body and engaging a suitable projection or projections carried by the rod.

In the accompanying drawings setting forth the construction and disposition of the'` various parts of this invention,

Fig. 1 represents a side view of all parts assembled.

Fig. 2 is a top view of all the partspartly in section. Y

Fig. 3 is a view of the spiral and revoluble member alone, illustrating the grooves in the said member.

Fig. 4 is a view of a portion of the body part of this invention in section, lshowing the reciprocative operating rod therein, and the projection or projections carried by the rod to engage the groove of the spiral mem- 0 ber.

In Figs. 3 and 4 thescale of drawing ha been slightly increased. l

Throughout the description and drawings the same number is usedv to refer to the same 15 part. l e' Considering the drawings, the handle 1 has at the end a removable screw plug 2 closing the end of a tubular shank or body 3 of the invention. 59 body may be slightly reduced in diameter,

The outer portion 4 of thev Vor rounded and terminated by an expanding VA longitudinally sliding: rod 6 y occupies thebody 3 movably, and it is to admit oil to 'the sliding rod'and theftubular bodyandy to 55 closey the end of the bodyy that the screw plug 2 is introduced.' The'rod' is made with one or more projections A7, which are arranged to engage and act with the groove' 8 of a'. spiral-disk-or member 9. The member 9 is 60 revoluble by means of nger pieces 10 on a Y pintle 11. The outer end of the sliding rodv 6 isi threaded and marked 12 in Fig. 1, and Fit provided with an adjustable cross-head A13 65 equipped with projecting pins `14 and'l 15 at the; ends/The pins engage and travel slots 16 and .'17 extending lengthwise in links 1S and 19. j Those links have a common pivotal` junction 20 with the head 5 of the body 4, and 70 they yare, attached 'pivotally at .their outer extremities byfthepivotscrews 21 and22 to the parallel jaw -bars'23 and 24, best shown in Fig. The parallel jaw bars are usually constru'ctedfwith 'I angularly disposed end 75 piecesofforked formation marked 25 vand `Either orbothof the end pieces'25 and 26 may be adjustable'and they are intended to engageV a spring 27` of a valve to remove or to reseat the`spring,-or for other like -purposes.'V- AAt'their 'other or right hand-ends-as setfor'th"inFig.' 1 the aw bars 23 and 24 havev pivotal-links 28 and 29 connected ata common pivotalpoint' with the body or shank 3.

In` the voperation of this inventiomif `it is S5 to beused on a longer 'spring Vthan the dist-ancebetween the jaws will normally accommodate, the adjustable forked end 25 may catch the spring 27 at any coil. Then, if the revoluble spiral member 9 be suitably turned 90 the rod 6 will be reciprocated to the left hand, and a very powerful eect exerted upon the links 21 and 22 by the cross-head pins 14 and 15. The result is that-*the jaw bars 23 and 24 move towards each lother and 95 the forks or ends 25k and 26 compress the spring enabling the'whole to be moved carrying the spring. Contrary movement reseats the spring and permits its expansion i'nto its former location.

Having now described this invention, and explained the mode of its operation, I claim 1. In a valve compressor and lifter, the,

combination with a body portion, of a rod arranged to be reciprocated longitudinally in the body, clamping jaws carried by the said body, means for supporting the jaws upon the body whereby the jaws aremovable parallel with each other and towards and from each other, devices carried by the rod and acting upon the said supporting means to move the jaws, and means'for actuating'the rod comprising a spirally grooved member transversely and rotatively' carried by the body, means lformed upon the said member for rotating the same by hand, and a tooth borne by the rod in engagement with the said spiral.

2,.,In a valve compressor and lifter, the Y combination with a bony portion, of a rod arranged to be reciprocated longitudinally in the body, clamping jaws carried by the said body, means for supporting the jaws comprising pairs ofparallel links pivotally attached to the said body and to the jaws, devices carried by thejrod and acting upon the said links to move the jaws, and means foractuating the rod ycomprising a grooved member rotatively carried by the said'body and provided with iinger pieces whereby the member may be rotated, and a proj ect-ion borne by the rod andn arranged Vin engagement Vwith vthe groove of the said member.

3, In avalve compressor and lifter, the combination with a body portion, of a rod arranged to be reciprocated longitudinally in the body, clamping. jaws carried bythe said body, means QI supporting the jaws comprising` pairs of parallel links pivotally attached to the body4 and to the jaws, the links of the pairof links located towards the outer ends ofthe jaws having lengthwise slots, and pins earried` bythe said rod and acting upon the said 'slots in the links to move the jaws, and means yfor actuating the rod comprising a spirally grooved member rotatively carried by the `said bod-Y portion and a projection carried by the rod and arranged to engage the 50Y groove'of the spiral.

testimony whereof I affix my signatureP FREDERICK F. .FQ Rl1lMAl\l.v 

